Means for supplying liquid to fastening-inserting machines



m. MMMEsQIM I mm wfi MEANS FOR SUPPLYING LIQUID TO FASTENING-INSERTING MACHINES Filed May 24, 1939 2 Sheets-Sheet 1 A. MATHESQN mm m MEANS FOR SUPPLYING LIQUID T FASTENING-INSERTING MACHINES Filed May 24, 1939 2 sheets sheet 2 fi u, ILL J} m i; w 1

" machines as that disclosed in the application for Letters Patent filed inthe United States Patent Patented Oct. 1, 1940 UNITED STATES PATENT OFFICE MEANS FOR SUPPLYING LIQUID TO FAS- TENING-INSERTING MACHINES Arthur Matheson, Brockton, Mass, assignor to United Shoe Machinery Corporation, Borough of Flemington, N. J., a corporation of New Jersey Application May 24, 1939, Serial No. 275,433

12 Claims. (01. 1 32) My invention relates to machines for inserting Raymond P, Legro and Gaynor OGorman and, fastenings and in which it is desired to apply to bearing the Serial No. 275,432, is described and t e faSteningS a liquid prior their nser claimed certain subject-matter disclosed herein. It is of especial utility in connection with such In the accompanying drawings, in which appears one of the several forms which my invention may assume,

Fig. 1 shows my improved liquid-supplying means in vertical section, associated with a machine for attaching heels by fiber fastenings;

Fig. 2 is a broken top plan view of the die of the machine with its loading mechanism;

Fig. 3, an enlarged transverse section on the line III-III of Fig. 2; and

Fig. 4, a detail, in broken elevation, oftwo of the die-tubes and the adjacent portion of the liquid-controlling means.

The invention is illustrated in combination with a heel-attaching machine of the turrettype, similar to that of the previously mentioned application, though it is to be understood that it is equally applicable to apparatus having but a single fastening-inserting mechanism and to other forms than that of La Chapelle. The frame ill of the heeler carries a jack J, upon which is supported the Work to be operated upon, as a shoe S to which a heel H is to be secured. Rotatable upon the frame is a turret T, including a horizontal plate [2 having set in recesses about the underside of its periphery a series of dies I4, one for each plurality of inserting designs which are to be employed. For the purposes of the present invention, but one of these dies need be considered. The die I4 is held secured in the plate-recess by screws I6 and contains at its upper side a space iii of generally horseshoe-shape. Die-tubes 20, arranged in accordance with an inserting design, pass through bores 22 in the plate and alined bores 24'. in the die, and have cylindrical enlargements 26 in the space 18 with their peripheries separated from its opposite side walls. Extending axially of each tube is a passage 28 to receive a fastening and one of a set of reciprocatorydrivers 3% (Fig. 1), by which the fastening may be inserted in the work. Through the side of each tube-enlargement, outwardly from the axis, is an opening 32 connecting the passage with the space I8. With the drivers elevated, fastenings are delivered to the passages 28 by loading mechanism, having a block 34 mounted to oscillate upon a slide 36 guided upon the plate I2. Both these move ments of the block are produced by crank mechplate in the die-space. anism 3B rotatable upon the frame I. Through In an application filed in the United States tubes 4|], the block 34, when retracted, receives in Patent Office l on May 24, 1939, in the names of its passages 42 corresponding to the design of the Office on July 19, ,1938,in the name of Fred N. La Chapelle and bearing the Serial Number 220,- 064. This apparatus is designed for the attachmentof heels or heel-portions to shoes by fastenings severed from strings of adhesively coated fibrous material. When this material is moistened,a lubricating efiect is obtained facilitating theinsertion of the fastenings, and said fastenings may be caused to swell somewhat and the adhesiveness of their coating increased, so they are given added holding power in the work.

An object of the invention is to apply the liquid to the fastenings in a manner which will cause them to receive uniformly, only such a quantity as to give the above-indicated results, with freedom from an excess supply which would be likely to produce a drip interfering with the proper operation of the machine. In the attainment of this object, there is combined with an inserting die provided with a fastening-passage about which there is a space, means for supplying liquid to the die, and means movable in the die-space for controlling the flow of liquid to the passage. The die preferably has a pluralityof tubes, in each of which is a passage with an opening through the tube into the passage, the tube-openings being surrounded by the space in the die. There is means for supplying the liquid to this space and means for causing a flow of the liquid through the openings into the passages. By the control exercised substantially atthe points at which the liquid is to be used, the amount may be quite exactly determined-and the delivery limited to this. As herein shown, there is a member movable in the die-space, which will apply pressure to the liquid and thus positively cause the flow through the openings. This member may also act to open and close the tube-openings and thus limit the delivery of the liquid tothe proper times. It may be in the form of a plate extending about the tubes and having yieldable portions controlling the tubeopenings. The space in the die may be supplied with'the liquidfrom a barometric feed device, the head which this may cause being added to the delivery-force produced by the movement of the die-passages, the ends of strings F of fastening material. These strings may be twisted from paper sized with a stiffening, water-soluble adhesive. Into the loader-block, the ends of the strings are advanced through the tubes, and are severed by its compound movement to furnish discrete fastenings, which are advanced into registrationwith the die-passages 28. From these, the fastenings are forced by the descent of the drivers through the heel H and the heel-seat of the shoe S for the attachment of the former. Prior to this inserting stroke, the drivers are reciprocated to prick the work to facilitate the introduction of the fastenings.

It is desired that there shall be applied to the fastenings, after the pricking stroke of the drivers and before said fastenings enter the work, a liquid which may be effective for such results as activating the adhesive coating, causing the fiber to swell and rendering easier the entrance of the fastenings into the work. The last of these is especially useful in conection with the attachment of rubber heels or lifts. For this delivery, water is supplied to the die-space it from such a source as a barometric feed device B. This is illustrated in Fig. l as consisting of a bottle or like container 3 3 inverted upon a holder 45, furnishing within it a receptacle 48 into which the neck of the bottle extends. In this receptacle, the water from the bottle will rise to a definite height. From an opening 50 in the bottom of the receptacle, a pipe 52, for the turret machine, conveys water to a passage 54 in a stationary head 58. Passages 58 in the turret, connecting pipes 69 and passages 62 (Fig. 3), respectively individual to the dies l l, deliver the water to the die-space l8 of the inserting mechanism which is in operating position, and the passage 58 of which is in registration with the head-passage 54.

Considering the single active die which is to be supplied, the water will rise in the space E8 to a height determined by that in the receptacle 4-8. This may be at different levels with respect to the tube-openings 32. The chosen relation may be varied by raising or lowering the barometric device B, and by this means the force tending to cause the flow of water through the openings into the tube-passages may be altered. Movable within the die-space is means for both forcing and controlling the flow of water through the openings. This is shown as a horizontal plate 6d extending about the outside of the tubeenlargements 26 and having an area equal to a considerable portion of that of the space H3. The plate is guided for vertical reciprocation by upward projections 66, 66 extending through bores 68 in the turret-plate l2. These projections are normally held with their inclined upper ends l8 above the upper surface of the turretplate by springs l2, l2, interposed between the underside of the plate and the bottom of the space l8 outside the tubes. Depending from the inner edge of the plate 6 3 are yieldable projections M, preferably one for each of the tubeopenings 32. Secured to the inner side of the lower extremity of these projections or fingers is yieldable material, for example rubber, shown in-Figs. 2 and 4 as a continuous band 16.

Normally, the plate (i i is held by the springs 12 at the top of the space l8. In this position, the band 16 lies opposite the tube-openings, being forced toward them by the resilience of the fingers, so the respective portions serve as valves to close the openings 32 against the entrance of water from the space into the passages 28. After the drivers have made their first stroke to prick the work, which is clamped against the lower extremities of the tubes 20, the loader-block 34 is advanced to divide fastenings from the strings F and transfer these into alinement with the passages 28. Before this position is reached, upwardly and forwardly inclined surfaces 18 upon projections 80, from the outer extremity of the loading mechanism, strike simultaneously the inclined upper ends 10 of the plate-projections 66. The plate lid is thereby depressed against the force of the springs 12, it moving longitudinally of the tubes. The band 16 at once leaves the openings 32, freeing these to receive water from the die-space. The plate, urged against the surface of the liquid in the space, creates a pressure thereon, which is added to any which may be caused by the head resulting from the elevated supply in the receptacle 48. The water is thereby forced positively through the openings '32 into the die-passages, the action of the plate upon the water adjacent to all the openings, tending to give uniform delivery into all the tubes. The water is retained in the passages by the work closing their lower ends. The drivers descend through the block-passages 42 and diepassages 28, forcing the severed fastenings out of the block through the die-passages into the work. In their travel through the latter passages, they take up the water therein, furnishing the lubricating and retaining action already mentioned. While the drivers are in the diepassages, they close the openings 32 to prevent the delivery of water. As soon as they rise, the block 34 is retracted, permittingthe springs 12 to elevate the plate 64. The valve-band 16 thereupon closes the openings 32 until the machine is again operated.

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a fastening-inserting machine, inserting mechanism having a die provided with a fastening-inserting passage and with a space connected to said passage, means for supplying liquid to the space in the die, and means movable in said space for controlling the flow of liquid into the passage.

2. In a fastening-inserting machine, inserting mechanism having a die provided with a fastening-inserting passage, means for supplying liquid to the die at a predetermined pressure, and means movable in the die for controlling the flow of liquid into the passage.

3. In a fastening-inserting machine, inserting mechanism having a die provided with tubes in which are fastening-receiving passages, there being a space in the die surrounding the tubes and an opening in each tube connecting its passage to the space, means for supplying liquid to the space, and means in the space for causing a flow of liquid through the openings into the passages.

4. In a fastening-inserting machine, inserting mechanism having a die provided with tubes in which are fastening-receiving passages, there being a space in the die surrounding the tubes and an opening in each tube connecting its passage to the space, and a member movable in the space to apply pressure to the liquid therein.

5. In a fastening-inserting machine, inserting mechanism having a die provided with tubes in which are fastening-receivingv passages, there being aspace in the die surrounding the tubes and an opening in each tube connectingits passage to the space, and a member movable in the space for controlling the flow of liquid through the openings into the passages.

6. In a fastening-inserting machine, inserting mechanism having a die provided with tubes in which are fastening-receiving passages, there being a space in the die surrounding the tubes and an opening in each tube connecting its passage to the space, means for supplying liquid to the space at a predetermined pressure, and means in the space for causinga flow of liquid through the openings into the passages. V

7. In a fastening-inserting machine, inserting mechanism having a die provided with tubes in which are fastening-receivingpassages, there being a space in the die surrounding the tubes and an opening in each tube connecting its passage to the space, a barometric feed device for supplying liquid to the space, and means in the space for causing a flow of liquid through the openings into the passages.

8. In a fastening-inserting machine, inserting mechanism having a die provided with tubes in which are fastening-receiving passages, there being a space in the die surrounding the tubes and an opening in each tube connecting its passage to the space, and a member movable in the space to open and close the tube-openings.

9. In a fastening-inserting machine, inserting mechanism having a die provided with tubes in which are fastening-receiving passages, there being a space in the die surrounding the tubes and an opening in each tube connecting its passage to the space, and a plate movable in the space and longitudinally of the tubes and having means to open and close the openings.

10. In a fastening-inserting machine, inserting mechanism having a die provided with tubes in Which are fastening-receiving passages, there being a space in the die surrounding the tubes and an opening in each tube connecting its passage to the space, and a member movable in the space and having yieldable portions controlling the openings.

11. In a fastening-inserting machine, inserting mechanism having a die provided with tubes in which are fastening-receiving passages, there being a space in the die surrounding the tubes and an opening in each tube connecting its passage to the space, and a plate movable in the space and extending therein about the tubes,

12. In a fastening-inserting machine, inserting mechanism having a die provided with tubes in which are fastening-receiving passages, there being a space in the die surrounding the tubes and an opening in each tube connecting its passage to the space, a plate movable in the space and having projecting fingers, and yieldable material carried by the fingers for co-operation with the tube-openings.

ARTHUR MATHESON. 

